Forth



(No Model.) 2 Sheets-Sheet l.

P. C. OLIN. STEAM PUMP.

No. 415,055. Patented Nov. l2, 1889.

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Inventor Witnesses N. PETERS, PhoimLilhegraphur. Wanhngwn. I)A C.

ZUSheets-Sheet 2.

Patented Nov. 12, 1889.

(NModeLy P'. C. OLIN.

STEAM PUMP. No. 415,055.

Inventor-z id M Witnesses v l @M .-w

N1 crans Pnowmmgnpner. wnmngmn, n, c.

Y NITED "STATE-s PATENT Ormea,

FRED O. OLIN, OF BUFFALO, NEV YORK, ASSIGNOR OF ONE-HALF TO DAN- FORTH & CLARK, OF SAME PLACE.

STEAM-PUMP.

SPECIFICATION forming part of Letters Patent No. 415,055, dated November 12, 1889.

Appiipiipii filed April 11, i889.

To all whom t may concern.-

Be it known that I, FRED C. OLIN, of Buffalo, in the county of Erie and State of New York, have invented certain new and useful .Improvements on Steam-Pumps; and I do hereby declare that the following description of my said invention, taken in connection with the accompanying sheets of drawings, forms 1 a full, clear,and exact specification, which will enable others skilled in the art to which it appertains to make and use the same.

This invention has general reference to improvements in steam-pumps; and it consists, essentially, in the novel and peculiar combination of parts-and details'of construction, as hereinafter first fully set. forth and described, and then pointed out in the claims.

In the drawings already mentioned, which serve to illustrate my said invention more 2o fully, Figure l is a side elevation of my improved steam-pump. Fig. 2 is a longitudinal sectional elevation of the same, illustrating the parts of the pump at the beginning of the downstrolte. Fig. 3 is a similar view of the, same, showing the position of the parts imm ediately after the beginning of the upstroke.

Like parts are designated by corresponding letters of reference in all the figures;

A in the drawings, designates the steamcylinder of my steam-pump. It is secured to a suitably-constructed base B by means of screws l, it having flanges on both its ends for this purpose, and forthe further object of securing to its upper end the pump-cylinder O. This latter cylinder is smaller than the steamcylinder, the difference being regulated by the height to which the pump is to lift or the head against which it has to force the liquid.

The base B chamber B', closed on its bottom side by a cap Je, said chamber being of two different diameters to produce a shoulder or offset o", for the purpose hereinafter to be referred to. In

45 this base there is, furthermore, a valve-seat against which a flat plate or slide-valve L bears, said chamber B being in communication with the face of this valve-seat by a steam-port fr, while a steam-chest 2 incloses 5o the valve L in a manner readily understood has centrally a cylindrical Serial No. 306,895. (No model.)

from the drawings. In the base B, and leadving from the Vcylinder A and through the steam-port x, there is a cylindrical passage fitted with a loosely-fitting plug' X, connected with said slide-valve L by a bar 5, said plug 5 5 X projecting into the steam-cylinder A a suitable distance. In this plug X there is a groove or way 4, acting as a passage between said port 0c and the steam-cylinder A during a portion of the downstroke of the piston E.

NVithin the chamber B there is located a valve-piston K, c onsisting of a central body having on its lower end a rim or ledge 8, f1tting the larger portion K of said chamber B', while its body is smaller than the lesser portion of said chamber, there being near its upper end a projecting ledge or rim lO, to which is screwed a cap-piece 7o', a series of apertures 9 in said ledge establishing communication between the port x past the central portion of the piston K, and through a series of apertures G in said cap-piece It into the cylinder A. l

Below the cap-piece k just mentioned there is placed a disk-valve 1l, which in lifting bears against the under side of the cappiece la', while normally it is about midway between the rim l0 and the bottom of the cappiece 7c'.

Within the steam-cylinder A operates the steam-piston Fi, while -in the pump-cylinder, immediately above,works the pump-piston F, both pistons being connected with one another by a tubular piston-rod T. The steampiston E has a central passage E', fitted with a valve U, the head of which is below the' level of the piston when the valve is closed and even with the bottom of said piston when said valve is open.

The tubular piston-rod T screws with one end into the piston, and it extends with its otherend through the water or pump piston l into its head 12,there being a stuffing-box 13 in the end of the tubular piston-rod, so as to tightly pack a valve-rod V on that end, and at the same time produce suflicient friction upon said rod to keep it in any position into which it may be put. This rod V projects" beyond the head 12 of the pump-piston, and has on its upper end a disk or head fu, while IOD its lower end bears upon the valve U, or is rod opening into the chamber F establish al communication between the steam and the pump cylinders, which communication is under the control of the valve U, in a manner hereinafter explained.

In the head l2 of the pump-piston there is located a disk-valve F", (of rubber or other suitable material,) which valve closes the openings 7L iu said piston-head l2 during the upstroke and also during a portion ot' the downstroke of the said pistons.

On the top of the pump-cylinder, and preferably formed in one piece therewith, is located t-he valve-chamber D, having suction and discharge valves g operatin g upon vertical studs g, and loosely held upon their seats by coil-springs g, in the well-known manner, the suction-chamber G beingclosed on top by a cap mand the discharge-chamber G by a bushing l), there being in the latter the discharge-pipe I, while into the chamber G leads the suction-pipe II.

Through the top wall ofthe chamber D passes a screw-threaded stop-rod R, havinga lock-nut r, said rod being reduced inside ot' the chamber, at o", to receive acup s, there being a nut s on the end ofthe reduced portion or shank r" to keep said cup upon said` shank, a spiral spring S being interposed between the cup s and the shoulder R to offer a certain resistance to the head o of the rod Vwhen the latter reaches the said cup, and

thereby produce an elastic abutment forthe same.

Through the lower flange of the pump-cylinder and into the steam-cylinder A projects a lifting-rod N, having on its upper end a laterally-projecting head-piece N', through which passes the valve-rod M, connectingwith its lower end with the slide-valve L. On the upper end of this valve-rod is placed a nut d and a washere, while a spiral spring O is interposed between said washer and the head-piece N to afford an elastic cushion for the rod N, so that the slide-valve is started easily and without jar when the head of` the steam-piston reaches the said rod N:

In the steam-piston E there is a deep annular groove 14, into which is fitted a doublewalled` shelljj, the outer one of which has a laterally-projecting flange, by'means of which and screwsz' it is fastened to the upper and outer edge of the steam-piston, whilethe inner onejl terminates in a cone t, the apex of which 1s soldered or otherwise fastened to` the tubular piston-rod T. This double-walled packing 17 of thepump-piston from coming in contact withthe metallic surfaces of the steam-piston and cooling the same, the annular space between the walls j j serving as a receiver for said water, which is forced out of said annular space everytime that the steampistonreachesthe end of the upstroke.

The lining of the pump-cylinder,:which is preferably made of brass, projects into the steam-cylinder a certain distance corresponding with" the depth of the annular space 18 between the wallsjj, so that when the steampiston approaches the end of the upstroke the projecting end of the lining C', Fig. 23,

the water contained therein and forces it out `of the passage 15, leading it to the exterior oi the steam-cylinder (Land from whence it may be led by means of pipes (not shown) to any convenient place.

The operation of this pump is substantially as follows: Assume that the steam -eylinder A has' been supplied with steam, and that this steam has forced the' steam-piston E to the upper endfof its cylinder, and that` the parts have assumed the position shown in lFig. 2, and that the Valve-chamber D was suitably primed, so as to be i'ull ot" water. `.Steam passing from the lower side of the steam-pistouE through the valve U, tubular lpiston-rod T, passagesf and 71, into the discharge-chamber l, lifting-the disk-valve F `Ifor this purpose, this steamM as soon as it comes in contact with the Water in said chamber G Iis immediately` condensed and produces a partial vacuum in said chamber, itspassages, the `nteriorof the piston-rod, and the steam-cylinder, so as to immediately start the piston on its downstroke, and water entering the pumpcylinderl through the suction-pipe l-I and valve-chamber G, it being understood that the pistons are' forced downward principally by their own weight and bythe atmosphere acting upon thesteam-piston with a force due to the-difference in area between the pump and steam pistons, the space between said pistonsbeing open to the atmosphere through theport l5.4 When the steam-piston in its downward travel reaches the stop X, it will push it downward and with it the slide-valve L until thelatter has openedY the port :c sufficiently` to admit steam to enter the central chamber B in the base B, said steam passing from the steam-pipe .I into the steamchest 3 in a manner readily eomprehended. The current of steam thus passing through the apertures 9 in the rim l0 of this valve piston` K williimmediately throw the disk valvell upward against the under side of the head-piece k, and cause the said valvepiston to move outward, meeting the valve U in the steam-piston and `closing it while the latter piston is just completing its downstroke, it beingobserved that steam passing throughV a notch 7 in the bottom rim ofthe valve-piston K, (see Figs. l and 2,) below the same, is the medium that forces the said pis- IOO IIO

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ton-valve upward. In case the piston Eis already so near the end of its downstroke that the valve-piston K cannot rise high enough to disclose the openings 6, Fig. 3, in the head-piece k above the top surface of the base B, (the bottom of the steam-cylinder,) so as to let steam pass into the steamcylinder through these openings, the diskvalve Il will not be in condition to lodge against the under side of said head-piece, and therefore steam will pass through the 'center opening 19 in said head-piece and force the steam-piston onward on its upstroke, the piston K following it until the openings 6 are above the base B, and thereby a free admission of steam to the steam-cylinder afforded, the exact position of the parts at this point being illustrated in Fig. 3. When the steam-piston E in its downstroke moves the slide-valve L, through the intervention of the push-rod X and the rod 5, the valverod M pulls the stop N downward, so that its lower end projects into the steam-cylinder a short distance. As soon as the said piston reaches this stop-rod in its upstroke it will move it upward and thereby'pull the slidevalve L shut, the latter taking effect a short time before said steam-piston has completed the upstroke, which 'is finished by the eX- pansion of the steam in the steam-cylinder. At the point where theslide-valve L has just closed the port a: the head 'U of the valve-rod V in the tubular piston-rod has reached the cup s 0n the stop-rod R, the exact point being capable of being regulated by screwing the said stop-rod in or out, as the case may be. .This will then arrest the upward movement of said rod V, and the pistons, completing the upst-roke, will open the valve U to allow the steam in the steamcylinder to exhaust into the valve-chamber G,

' and to cause the condensation thereof and parts as heretofore set forth.

the production of a vacuum, (or a partial vacuum,) as already mentioned, and the downstroke of the pistons, the working of the pump being a repetition of the operations of the The valve-piston'K in the chamber B', after being forced outward by the pressure of the steam, would remain in that position during the downstroke of the steam-piston. drop back into the chamber B after the steamport ce has been closed,I form the groove 4t in the rod X to act as a vent, there being also a a notch or notches 7 in the rim 8 of said piston for that purpose.

It will readily be observed that, owing to the momentum acquired by the pistons in their up and down strokes, respectively, the action of this pump will be perfectly regular and positive, the number of strokes delivered lper minute depending upon the initial steampressure as well as upon the head against which the water of the pump is being forced.

It will now be further observed that, while this motor operates as either a high-pressure and condensing one, or as a low-pressure and To enable it to readilycondensing, theinitial steam-pressure being from one to two pounds per square inch upward, yet there is no condenser required to produce the vacu um necessary to produce the downstroke of the pump, all the steam used in the upstroke being condensed by the water lifted by and in contact with the water lifted, and therefore the best results obtained at a comparatively small expenditure of power, all the heat being utilized in raising the temperature of the water raised, so that this pump may readily be used as a boiler-feeder,where it will do as economical service as any inljector or other medium condensing the steam used. It may also be used as a tank-pump for railway service, owing to the fact that the temperature of the water pumped will be high enough to dispense with heaters for the same in winter time. In fact, it is well adapted to all the various duties of a steam-pu mp.

Having thus fully described my invention, I claim as new and desire to secure to me by Letters Patent of the United States- 1. In steam-pumps, the combination, with the steam cylinder and piston, of the base having the central chamber fitted with a piston and disk valve and the steam-chest with its slide-valve, whereby said slide-valve, by allowing steam to act upon the piston in said chamber, controls the admission of steam to said steam-cylinder, as and for the purpose set forth.

2. In steam-pumps, the combination, with the steam-cylinder and its piston, of the base having the central chamber, the valve-piston provided with the head, and the disk-Valve, and the steam-chest and slide-valve, the latter being actuated by the top and botton stopbars, as stated.

3. The combination, with the steam-cylinder and its piston, of the base having the central chamber fitted with a piston and valve, said valve being adapted to close against the under side of the head-piece of said piston, as and for the purpose stated.

4. The combination, with the base B, having the cent-ral chamber B', of the valve-piston K, having the flanged body, the upper rim 10, provided with the perforations 9, the diskvalve 11, and the head-piece ff, as and for the object specified.

5. The combination, with the base B, having the central chamber B', port Qs, steamchest 3, and slide-valve L, of the valve-piston K, consisting of a flanged body having per- -forations l0, the disk-valve 1l, and the head IOO IIO

'7,v In steam-pumps, the combination, with the stea1ncy1inder,of the piston E, having the central passage E', the Valve U, rod V, and the adjustable stop R, as described.

S. The combination, with the steam-cylinder, of the stea1npiston and water-piston con nected togethel` by a vtubular piston-rod, said steam-piston having a Valve closing against its bottom and the pump-piston having a valve closing upon its top surface, as and for the purpose set forth.

t). The combination, with the steam-cylinder and pump-cylinder, of the steam and pump pistons connected together by a tubular rod, as described, said steam-piston having the valve U and rod V, and the pump-piston provided with the chamber F passages f and 7L, and the valve 11"', the Valve U, rod V,and the pump-piston having the chamberF, passages f and 71, and the valve F", the valve Uin said steam-piston being closed and opened by movable stops, as and for the object stated.

10. rlhe combination, with the steam and water pistons, of a valve located in said steampiston, adapted to open and close communication between the steam and pump cylinders, passages between the steam and water cylinders, and Valves in the valve-Chambers, whereby the exhaust of the steam-cylinder is discharged into the Wateriu the valvechainber, as and for the purpose set forth.

11. 1n steam-pumps, the combinatiomwith the steam and water cylinders, of connected pistons for both cylinders, a slide-Valve governing the admission of steam to a central chamber in the base, a piston-valve in said chamber, a check-Valve on the lower end of the tubular piston-rod, and a disk-valve on the upper end of the pistons, and'stops for opening and ciosing said Valves, as and for the purpose set forth.

12. In steam-pumps, the combinatio11,with the steam-piston, of the double-walled nonconduotor affixed to and enteringr the annular groove in` said steam-piston, as and for the object stated.

y 13. In steam-pumps, the adjustable stop R, having the shank r', cup s, and spiral spring S, in combination with the piston, the Valve U, and rod V, as stated.

14. The combinatiolnwith the steam-piston, ot" the tubular piston-rod, the water-piston having the chamber F', head 12, with the passages h, and the disk-valve F, as stated.

In testimony that I claim the foregoing as 1n y invention I have hereto set my hand in the `presence of two subscribing Witnesses.

FRED C. CLIN. Attest:

MICHAEL J. STARK, WM. O. STARK. 

